The Western Front 1917: Captain Blackadder, hero of Mboto Gorge, joined the British Army when it was little more than a travel agency for gentlemen with an abnormally high sex drive. Now he finds himself crammed into a sewer, twenty yards from a lot of heavily armed people who want to kill him. Worse still he takes his orders from two homicidal maniacs - one called the charge of the light brigade a victory for common sense and the other called Kevin.